21473+4644 SRW 11 AB

 
 
21h 47m 18.05s +46° 43' 53.7" P.A. 28.00 sep 28.9 mag 9.56,9.67 Sp F0
 
 
Coord 2000 21473+4644 Discov num SRW  11 Comp AB Coord arcsec 2000 21 47 18.05 +46 43 53.7
Date first 1895 Date last 2016 Obs 13
Pa first 28 Pa last 27.5 P.A. Now (θ) 27.5°
Sep first 28.9 Sep last 28.92 Sep. Now (ρ) 28.92"
Mag pri 9.56 Mag sec 9.67 delta mag (ΔM) 0.11 Spectral class F0 (yellow-white)
Pri motion ra -005 Sec motion ra -003
Pri motion dec -011 Sec motion dec -010
Notes V (Proper motion indicates physical)
rPM=0.185 (< 0.3, Physical double)
This double is physical.
 
 
21473+4644 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 47 18 +46 43 54 SRW 11 AB 2016 13 28 28.9 9.56 9.67 0.11 <===
Show 21 47 18 +46 43 54 SRW 11 AC 2016 6 341 26.3 9.56 12.50 2.94
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3604-01964-1 Gaia DR2 1974655267829839488